The Walking Dead universe show will debut in Spring 2020, and the trailer clearly shows a tonal shift from The Walking Dead and Fear the Walking Dead. As the first generation that has grown up in the apocalypse, these children are actually relatively sheltered. This show is set a decade after the apocalypse hit.

In the trailer, we see them in a university-like area called NSU with classes, athletics programs (hello, NSU Golden Stingers) and other seemingly familiar elements of childhood -- though, of course, all focused around surviving in a post-apocalyptic zombie-filled world. Dialogue in the trailer says 9071 people live in this society, and executive producer Scott Gimple revealed another important level to this civilization during the NYCC panel.

Referencing the three-circle symbol seen on both Fear the Walking Dead and on the helicopter that took Rick in The Walking Dead, Gimple explained that the circles "represent three different civilizations that are bound and entwined in some way." This NSU location is "associated with one of those circles," and will get "very deeply into that mythology" and show how big the world of The Walking Dead is.

The new series circles around this new generation of characters who have lived in a relatively sheltered environment leaving the safety of their civilization to go on a quest. According to the cast, every one of the kids who leaves the NSU civilization has a reason to be out there.

These children call themselves the "Endlings," but that's not the only big jargon change for the new show. Like Fear the Walking Dead changed how the characters refer to walkers, the third AMC show will call the zombies "empties."

Though the series is designed as a standalone, there are opportunities for crossovers in a way similar to how Fear and The Walking Dead have crossed over. "This is a whole new mythology within the world of The Walking Dead, and yet this mythology has already touched both shows," teased Gimple.

Added Kirkman: "If you're watching this show and Negan's bat shows up ... if you watch The Walking Dead, you'll be like, oh crap, Negan's bat is totally in this new show."

The synopsis for the new series says it will "feature two young female protagonists and focus on the first generation to come-of-age in the apocalypse as we know it. Some will become heroes. Some will become villains. In the end, all of them will be changed forever. Grown-up and cemented in their identities, both good and bad."

Though the series hasn't yet been named, Gimple joked that it could be called "Look Who's Walking." We're all in.

Terri Schwartz is Editor-in-Chief of Entertainment at IGN. Talk to her on Twitter at @Terri_Schwartz.